{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","feed_url":"https://feed.craftedsignal.io/products/picklescan--0.0.34/feed.json","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cpes":[],"_cs_cves":[{"cvss":8.1,"id":"CVE-2025-71367"}],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["picklescan \u003c 0.0.34"],"_cs_severities":["high"],"_cs_tags":["deserialization","vulnerability","python","pickle","rce"],"_cs_type":"advisory","_cs_vendors":["picklescan"],"content_html":"\u003cp\u003eA critical vulnerability, CVE-2025-71367, has been identified in \u003ccode\u003epicklescan\u003c/code\u003e versions prior to 0.0.34. This security flaw stems from \u003ccode\u003epicklescan\u003c/code\u003e's inability to properly detect the use of \u003ccode\u003e_operator.attrgetter\u003c/code\u003e function calls when they are embedded within \u003ccode\u003epickle\u003c/code\u003e payloads' \u003ccode\u003ereduce\u003c/code\u003e methods. This oversight allows remote attackers to effectively bypass \u003ccode\u003epicklescan\u003c/code\u003e's intended security checks, designed to prevent malicious deserialization. By crafting a specially designed \u003ccode\u003epickle\u003c/code\u003e file that leverages this bypass, an attacker can achieve arbitrary code execution on systems that deserialize these files using \u003ccode\u003epickle.load()\u003c/code\u003e while relying on the vulnerable \u003ccode\u003epicklescan\u003c/code\u003e version for security. This vulnerability exposes affected applications to severe compromise, including full system control and data exfiltration.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAttacker crafts a malicious Python \u003ccode\u003epickle\u003c/code\u003e file containing carefully constructed bytecode.\u003c/li\u003e\n\u003cli\u003eThe malicious \u003ccode\u003epickle\u003c/code\u003e payload specifically utilizes the \u003ccode\u003e_operator.attrgetter\u003c/code\u003e function within \u003ccode\u003ereduce\u003c/code\u003e methods to invoke arbitrary code.\u003c/li\u003e\n\u003cli\u003eThis specific structure is designed to evade the security detection mechanisms implemented in \u003ccode\u003epicklescan\u003c/code\u003e versions before 0.0.34.\u003c/li\u003e\n\u003cli\u003eThe attacker delivers this crafted \u003ccode\u003epickle\u003c/code\u003e file to a victim system, potentially via email attachments, compromised package repositories, or malicious downloads.\u003c/li\u003e\n\u003cli\u003eA vulnerable application on the victim system attempts to deserialize the malicious \u003ccode\u003epickle\u003c/code\u003e file using Python's \u003ccode\u003epickle.load()\u003c/code\u003e function.\u003c/li\u003e\n\u003cli\u003eDuring the deserialization process, the integrated \u003ccode\u003epicklescan\u003c/code\u003e library (version \u0026lt; 0.0.34) fails to identify the embedded, malicious \u003ccode\u003e_operator.attrgetter\u003c/code\u003e calls as a threat.\u003c/li\u003e\n\u003cli\u003eDue to \u003ccode\u003epicklescan\u003c/code\u003e's detection bypass, the deserialization process proceeds unchecked, leading to the execution of the arbitrary code defined within the malicious \u003ccode\u003epickle\u003c/code\u003e payload.\u003c/li\u003e\n\u003cli\u003eThe attacker successfully achieves arbitrary code execution on the victim system, potentially leading to system compromise, data theft, or further lateral movement.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of CVE-2025-71367 can lead to severe consequences for organizations utilizing \u003ccode\u003epicklescan\u003c/code\u003e versions before 0.0.34. Since the vulnerability allows for arbitrary code execution, attackers can gain full control over the compromised system, leading to unauthorized data access, modification, or destruction. This could result in significant data breaches, operational disruption, and reputational damage. While specific victim counts are not available, any system processing untrusted \u003ccode\u003epickle\u003c/code\u003e files with vulnerable \u003ccode\u003epicklescan\u003c/code\u003e versions is at risk, particularly those in data science, machine learning, or software development pipelines where \u003ccode\u003epickle\u003c/code\u003e is frequently used for object serialization.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eImmediately update \u003ccode\u003epicklescan\u003c/code\u003e to version 0.0.34 or higher to remediate CVE-2025-71367.\u003c/li\u003e\n\u003cli\u003eEnsure all applications and services that handle \u003ccode\u003epickle\u003c/code\u003e files are using the patched \u003ccode\u003epicklescan\u003c/code\u003e library.\u003c/li\u003e\n\u003cli\u003eImplement secure deserialization practices, avoiding \u003ccode\u003epickle.load()\u003c/code\u003e of untrusted data even with security scanning, as illustrated by CVE-2025-71367.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-07-04T02:27:18Z","date_published":"2026-07-04T02:27:18Z","id":"https://feed.craftedsignal.io/briefs/2026-07-cve-2025-71367-picklescan/","summary":"Picklescan versions prior to 0.0.34 contain a deserialization vulnerability (CVE-2025-71367) that allows remote attackers to bypass security checks by crafting malicious pickle files using `_operator.attrgetter` in reduce methods, leading to arbitrary code execution when `pickle.load()` processes the file.","title":"CVE-2025-71367: Picklescan Bypass Leading to Arbitrary Code Execution","url":"https://feed.craftedsignal.io/briefs/2026-07-cve-2025-71367-picklescan/"}],"language":"en","title":"CraftedSignal Threat Feed - Picklescan \u003c 0.0.34","version":"https://jsonfeed.org/version/1.1"}